Riveting-machine.



110.850.615. Y y PATBNTED 1111.16, 1907.

J. BINHGHAM. Y lRIVETING MACHINE.

' nrmon'lon FILED 11mm, 1906.

' 2s11nms-snnm 1.

nu: namu PETERS ce., wllsumawn, D. c.

UNITED sTArns PATENT OFFICE.

JEREMIAH BIN GHAM, OF TOLEDO, OHIO, ASSIGN OR TO THE TOLEDO MACHINE ANDTOOL COMPANY, OF TOLEDO, OHIO, A CORPORA- TION OF OHIO.

RIVETING-IVIACHINE.

Nois5o,e15.

Speccaton of Letters Patent.

Patented April 16, 1907.

To all whom, it may con/cern:

Be it known that I, JEREMIAH BINGHAM, a citizen of the United States,and a resident of Toledo, in the county of Lucas and State of Ohio, haveinvented a certain new and useful Riveting-Machine; and I do herebydeclare the following to be a full, clear, and eX- act description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the figures of reference marked thereon,which form a part of this speciiication.

My invention relates to means for riveting ears or handle-clips topail-bodies, coal-hods, pans, tubs, metal boxes, or other work of asimilar nature, and has for its primary object the provision of a simpleand improved form of machine of the class which is adapted to both drawthe rivets through the work and head them at a single operation.

The opera-tion, construction, and arrangement of the p arts of one formof the invention are fu'l y :described in the following specificationand illustrated in the accompanying drawings, in which- Figure 1 is aside elevation yof a powerpress equipped with my improved rivetingattachment with .a portion of the pressframe in section. Fig. 2 is anenlarged front elevation of the movable riveting part and horn in normalrelative positions with a portion of the horn in section on the dottedline :l: in Fig. 3. Fig. 3 isa side elevation `of Fig. 2. Fig. 4 is anenlarged cross-section taken on the dotted line y 'y in Fig. 3 with themovable riveting part in lowered position. Fig. 5 is a centrallongitudinal vertical section of Fig. 4. Fig. 6 is a front view of theupper riveting part and horn in the position shown in Fig, l, and Figs.7 and 8 are a front elevation and-cross-seotion of a portion of a paillor other article with ear attached.

Referring to the drawings, 1 indicates the frame, and 2 the slide orplunger, lof a powerpress of any suitable construction, Secured to theframe 1, as at 3, below the .plane of movement of the plunger 2, is ahorn 4, which is of suitable size `and shape to carry the work beingoperated on Iand is faced on its upper side with Y,a hardened metalplate 5. This horn is provided on its -upp'er surface With thevvertically-disposed transverselyalining fixed gage-pins 6 and 7 forgaging the relative positions of the pail or other article 8 and ear 9as they are positioned on the horn 4 preparatory to being rivetedtogether and is also provided with the yieldingly-mounted lgage-pin 10,which has its upper end made conical in form to partially pass throughthe bail-eye of the ear. This latter gage-pin is disposed centrallybetween the xed pins 7 and slightly to the rear thereof, as shown inFigs. 2 and 3, and is carried by a pocket 11 in the horn, the lowerportion of which is enlarged to receive the lower shouldered end of thepin and the coiled compression-spring 12, as shown in Fig. 5, the lowerend of said pocket being closed by a plug 11a. One or more shallowpockets 13 are formed in the surface of the plate 5 to receive the lowerheaded ends of the rivets 14.

The movable riveting part of my invention is lcarried above the horn 4by the press slide or plunger 2, and consists of the head 15, which isattached to the lower end of the slide or plunger in a suitable mannerand carries the relatively fixed rivet headers or sets 16 16 and theyielding pressure plate or foot 17. The rivet headers or sets 16 havetheir upper ends removably secured, by means of set-screwsla, withinsuitable pockets formed in the under side of the head 15 and their lowerends slidingly mounted within apertures in the pressure-foot 17 inposition to coact with the rivets on the horn when lowered.

The pressure-foot 17 is shown as being of L-shape construction with itslower surface concave to conform to lthe contour of the horn and alsoprovided with .a pocket, as shown at 18 in Fig. 5, for receiving theoffset portion of the ear 9. The foot 17 is movably secured to the head15 by the screws 19 and 20, the former `of which pass through the slots21 in the vertical portion of the foot, while the latter has its lowerend threaded to the horizontal portion of the foot and its upper endpenetrating the head with its head mounted for verticalmovement withinthe pocket 22 therein, as shown in Figs. 3 and 5. Encircling the screw20 is a coiled compressionspring 23, which has its ends abutting theopposing surfaoes of the head 15 and foot 17 and is adapted to maintainthem in yielding spaced relation, as shown in Figs.. 2 and 3.

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As it is necessary during a portion of the riveting operation that thefoot 17 be maintained in rigid relation to its carrying-head, a pendentdog 24 is pivoted to each side of the head, as at 25, and providedintermediate its ends with a shoulder 26, which is adapted to coact withthe contiguous upper side edge of the foot when in extended or normalposition relative to its head, as shown in Fig. 2. 'Ihe dogs 24 remainshouldered on the foot 17 until the rivets on the horn have been drawnor forced through the work on the downstroke of the plunger, at whichpoint in their downward movement the ends thereof come in contact withthe beveled ends of the alining spreader-plugs 27, which are carriedwithin vertical pockets 28, provided in the sides of the horn 4, asshown in Fig. 2. An adjustment of these spreaderplugs is effected bymeans of the adjustingscrews 29, which are threaded through the bottomsof said pockets and retained in rigid adjusted position by lock-nuts 30,mounted thereon, as shown. A coiled contractionspring 31 has its endssecured to the opposite dogs 24 to normally maintain them in contractedposition. 0n the downstroke of the pressure-foot the gage-pins 6 and 7on the horn 4 project within alining apertures provided in the foot, asshown by dotted lines in Fi .2.

I wish it understood that I do not desire to be limited to the exactdetails of construction shown and described, for obvious modificationswill occur to a person skilled in the art.

The operation of the invention is as follows: The rivets are firstplaced in the pockets provided therefor on the horn 4, the pailbody orother article 8 placed over the rivets with its rim abutting the outergage-pins 6, after which the perforated ear 9 is placed upon thepail-body and located in proper position relative thereto due to itsbail-eye being placed over the conical end of the movable gage-pin 10and its sides' abutting the two fixed gage-pins 7. The parts of the workbeing thus properly positioned on the horn, the press is put inoperation, and on the downstroke of the pressure-foot 17 the rivets aredrawn or forced through the metal of the body 8 and alining rivet-eyesof the ear 9, due to the dogs 24 shouldering on the opposite edges ofthe foot and maintaining it in rigid relation to its head. As soon asthe rivets are forced through the work the lower ends of the dogs 24strike the beveled ends of the spreader-plugs 27 and are forcedoutwardly thereby to effect a release of the pressure-foot. On therelease of the dogs 24 the continued descent of the-plunger causes thepressure-foot 17 to be compressed toward its carrying-head 15 againstthe tension of the effect a release of the dogs at a predeterheaders orsets to work through said foot and 6 5 effect a heading of the upperends of the rivets against the work. On the upstroke of the plunger theparts assume their normal positions with the pressure-foot extended andthe dogs shouldered thereon in readines for the next downstroke.

It is apparent with this construction of riveting attachment that thetwo operations-namely, the drawing and heading of the rivets-arecompleted at one stroke of the machine and without necessitating achange of position of the work, and that it can be used successfully forthe drawing and heading of one or more rivets on small work-such, forinstance, as the riveting of ears or handle-clips to pail-bodies, pans,tubs, metal boxes, or similar work.

f Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination with the reciprocatory head, attached rivet sets, andwork-support in a riveting-machine, of an L-shaped pressure-footyieldingly carried by the head and having a portion projectingthereunder and perforated to receive the rivet sets, said foot havingits working face normally positioned in advance of the ends of the rivetsets, pendent members carried by the head and shouldered to normallylock with the foot to retain it in fixed position relative to the head,and means carried by the work-support for effecting a release of saidmembers at a predetermined point in the movement of the` foot.

2. In a riveting-machine, a work-support,

a reciprocatory head, a rivet set fixed thereto, a pressure-footyieldingly carried by the head and having a subjacent portion perforatedto permit a working of the rivet set therethrough, pendent dogs pivotedto the head and normally shouldered intermediate forated to permit aworking of the sets therethrough, springs interposed between the footand head, dogs pivotally carried by the head and shouldered intermediatetheir ends to engage ythe sides of the foot and retain it in fixedrelation to the head, means normally retaining the dogs shouldered onthe foot, and means carried by the work-support to spring 23 and thelower ends of the rivet `mined point in their descent.

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4. The combination With the rivet sets and Work-support in ariveting-machine, of a yieldingly-mounted pressure-foot normally havingits Working face positioned in advance' of the ends of the rivet sets,shouldered dogs normally locking With the pressure-foot to retain it infixed position relative to the rivet sets and having extensionsprojecting below the pressure-foot, and means eoacting vWithitheextensions for effecting a release of the dogs at a predetermined pointin the movement of the foot.

5. The combination with the Work-support and cooperating riveting partin a riveting- Inaclnne, of fixed Work-gages mounted on the i supportand a gage-pin yieldingly mounted on the support and having a conicalWork-engaging end, substantially as described.

6. The combination With the Work-support and cooperating riveting partin a rivetingmachine, of fixed Work-gages mounted on the support, and agage-pin yieldingly carried by the support, substantially as described.

In testimony whereof I have hereunto signed my name to thisspecification in the presence of tWo subscribing Witnesses.

JEREMIAH BINGHAM.

Witnesses:

CHAs. W. GREENING, LOUIS J. HINDE.

